1. School of Medicine, University of St Andrews, St Andrews, UK
2. Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA 22908-0736, USA
3. Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
4. Biomedical Sciences Research Complex, University of St Andrews, St Andrews, UK
5. Department of Chemistry, University of Warwick, Coventry, UK